Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 58 for “"Hypothalamic-pituitary-adrenal (HPA)"”.
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Alterations of the Corticotropin Releasing Hormone Receptor System Following Early Life Stress and Ethanol Self-Administration in Rhesus Monkeys
… to identify how ELS and EtOH drinking affected hypothalamic-pituitary-adrenal (HPA) axis function and CRH receptor binding. We used an accepted ELS model of maternal separation with nursery-reared (NR) and mother-reared rhesus monkeys induced to self-administer EtOH or control solution for over …
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Trauma and psychophysiologic reactivity: menstrual phase, posttraumatic stress disorder, and performance on a loud tones task
… variety of effects these hormones have on the Hypothalamic-Pituitary Adrenal (HPA) axis, glucocorticoids, stress and anxiety homeostasis, and conditionability. We hypothesized greater reactivity for participants with PTSD, and that menstrual cycle would moderate the effects of PTSD and …
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Circadian activation of the hypothalamic-pituitary-adrenal axis may affect central, but not peripheral, effect of lithium in conditioned taste aversion learning in rats
Activation of the hypothalamic–pituitary–adrenal (HPA) axis has been implicated in conditioned taste aversion (CTA) learning induced by lithium chloride. This study investigated if circadian activation of the HPA axis affects the lithium-induced CTA formation. The pairing of conditioned stimulus …
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STRESS-RELATED ALTERATIONS IN CENTRAL NORADRENERGIC SIGNALING: IMPLICATIONS FOR COMORBID ANXIETY, PTSD, AND ALCOHOL DEPENDENCE
… to a stressor results in the activation of the hypothalamic-pituitary-adrenal (HPA) axis and sympathetic nervous system, and this stress response is particularly sensitive during adolescence. Additionally, brain regions involved in generating and terminating the behavioral and neuroendocrine …
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ENDOCRINE-MEDIATED ORGANIZATIONAL EFFECTS ON PERSONALITY AND STRESS IN NAZCA BOOBIES
… testosterone, implicating short, but dramatic, hypothalamic-pituitary-adrenal (HPA) axis stress responses in organization of maltreatment behavior. Adult Nazca boobies exhibit personality traits on which early-life organizational effects could act: Gardening (anxiety-related movement of nest …
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New daters’ acute physiological responses to a standardized stressor : do nonadaptive hormone responses forecast romantic breakups?
… of salivary cortisol, a stress hormone of the hypothalamic-pituitary-adrenal (HPA) axis—one of the body’s primary stress response systems. Results from multilevel modeling indicated that cortisol trajectories among those whose relationships persisted versus those whose relationships ended were …
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Stress reactivity, stress appraisal and coping responses in schizophrenia
… biological response to stress by studying the hypothalamic-pituitary-adrenal: HPA) axis and the other focusing on the psychological mechanisms delineated in the transactional stress model. According to the transactional stress model, an individual's reaction to stressors is determined, in part, …
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THREE SPEEDS OF YOGA AND THE EFFECTS ON SALIVARY CORTISOL LEVELS IN FEMALE NURSING STUDENTS
… levels due to the excessive firing of the Hypothalamic Pituitary Adrenal (HPA) axis. This study assessed three speeds of yoga and how they acutely affected salivary cortisol levels within female nursing students. <strong>Methods</strong>: Students participated in three yoga sessions …
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Stress and selective attention : the impact of a stressful challenge on mood, cortisol, and the processing of emotional information
… mood, attention to emotional stimuli, and the hypothalamic-pituitary-adrenal (HPA) response to stress. It was hypothesized that participants would selectively attend to negative words (study 1) and pictures (study 2) following an aversive stressful experience, and that the attentional response …
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Spatial, temporal, and circuit-specific activation patterns of basolateral amygdala projection neurons during stress
… in governing typical responses to stress such as hypothalamic-pituitary-adrenal (HPA) axis activation. The overarching aim of this thesis was to conduct a systematic investigation of the spatial, temporal, and circuit-specific activation patterns of basolateral amygdala (BLA) projection neurons …
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Cognitive, neuroanatomical and neuroendocrine effects of long-term rotating shift work in a nursing sample
… endocrine responses in the body that affect the hypothalamic-pituitary-adrenal (HPA) axis. Whereas acute activation of the HPA axis adaptively activates the body’s stress response by increasing cortisol production, prolonged or repeated activation is detrimental to health due to dysregulation of …
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Proximate And Evolutionary Insights Into The Epigenetics Of Posttraumatic Stress Disorder
… involved in the regulation and activity of the hypothalamic-pituitary-adrenal (HPA) axis. Taken together, these data are suggestive of an evolutionarily-conserved capacity to regulate behavior, physiology, and psychology in response to extreme traumatic experiences. I argue that this capacity is …
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Lifetime stress, blood pressure, heart rate, and salivary cortisol levels in post-menopausal women
… was to examine the interactions between the hypothalamic-pituitary-adrenal (HPA) axis and the cardiovascular system in these women. Two measures of past stress were examined in relation to BP, HR, and cortisol levels. The Concordia Lifetime Stress Graph (CLSG) provided a measure of lifetime …
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Epigenetic & transcriptomic alterations associated with childhood maltreatment, major depressive disorder, and post-traumatic stress disorder
… (PTSD) later in life. Dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, a regulator of the body’s stress response, has been associated with exposure to childhood maltreatment, MDD, and PTSD. Additional work has shown that a history of childhood maltreatment, MDD, and PTSD is …
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The Examination of Mindfulness, Stress, and Eating Behaviors in Mothers of Young Children
… relationship between a chronically activated hypothalamic-pituitary-adrenal (HPA) axis, due to chronic psychological stress and mood disturbance, and the food reward-related mechanisms within the brain. Intensive mindfulness-based training programs, such as Jon Kabat-Zinn's Mindfulness-Based …
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Transgenerational Effects of Synthetic Glucocorticoids on Offspring Behaviour and HPA Development in Guinea Pigs
… and multiple-course sGC program alterations in hypothalamic-pituitary-adrenal (HPA) function and stress-associated behaviours in first generation (F1) offspring. Emerging studies in animals determined that sGC results in transmission of HPA and behavioural effects to the next generation (F2) of …
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Stress and Hippocampal Plasticity
… has been previously shown to be regulated by adrenal steroid hormones, N-methyl-D-aspartate (NMDA) receptor activity, psychosocial stress and learning and memory. Repeated restraint stress is known to induce neuroanatomical changes in the hippocampus, such as dendritic remodeling in CA3 …
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A multidisciplinary investigation of underlying pathways in ADHD: A study of ADHD genes, endophenotypes and phenotypes
… covariation of ADHD and dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, indexed by salivary cortisol. Using growth curve modelling, we identified an association between ADHD affection status and rate of change (declined faster). Further analysis suggested that this association …
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The effects of induced hypothyroidism on the glucocorticoid stress response in Japanese quail (Coturnix japonica)
… quail, a potential interaction between the hypothalamic-pituitary thyroid (HPT) and hypothalamic-pituitary adrenal (HPA) axes of control. I used the thyroid inhibitor ammonium perchlorate (AP) for 2 weeks and 5 weeks to induce two states of decreased thyroid function: a thyroid challenged …
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Social Information Processing, Cortisol Secretion, and Aggression in Adolescents
… in this area to date, especially with respect to hypothalamic-pituitary-adrenal (HPA) axis functioning in aggressive children. This investigation tested a mediational model of the relationship between social-information processing, cortisol secretion, and reactive and proactive aggression. …
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